Which of the following is the concept associated with an animal shivering in a cold environment to stay warm?
A) homeostasis
B) conformer
C) counter current heat exchange
D) torpor
A
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Given that these two gene loci are very closely linked, the genotypic ratio in the F2 generation should be closest to
In Drosophila, the allele red eyes (bw+) is dominant to the allele for brown eyes (bw). At another gene locus on the same chromosome, the allele for thin wing veins (hv+) is dominant to the allele for heavy wing veins (hv). Flies homozygous for bw and hv+ are crossed to flies homozygous for bw+ and hv to obtain doubly heterozygous F1 progeny. A. 1:2:1 B. 1:1:1:1 C. 9:3:3:1 D. 3:1 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about genetic linkage? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The systems that support and move the body are
A. skeletal and muscular. B. nervous and endocrine. C. circulatory and respiratory. D. digestive and circulatory. E. urinary and immune.
After their absorption from the gut lumen, monoglycerides and fatty acids are rejoined in the villi epithilia cells, forming lipid droplets called
What will be an ideal response?
A _______ is a product of meiosis and cytoplasmic division in seed plants that gives rise to a pollen grain.
A. megaspore B. germinate C. microspore D. pollen sac E. pollen tube